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investiga.ion of the transforma.ion of orga.ic matter of carbonate deposits of the Semiluksky-Mendymsky horizon under hydrothermal conditions

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Petroleum 2024年第2期10卷 216-223页

作者： S.M.Petrov a.i.Lakhova E.G.Moiseeva A.G.Sa.iulina institute of Petroleum Chemistry and NanotechnologiesKazan National Research Technological UniversityKazan420015Russia institute of Geology and Oil and Gas Technologies Kazan Federal UniversityKazan420008Russia

The paper presents the results of studies on the transforma.ion of the orga.ic matter of siliceous-clayey carbonate rocks of the Semiluksko-Mendymsky horizon of the Romashkino oil field in a hydrothermal fluid for an hour(with a water-to-rock ra.io of 33)at 340℃and 380℃and pressu res of 17 and 20 *** a result of hydrothermal treatment,at 340℃and 17 MPa,based on nitrogen porosimetry and electron microscopy data,transforma.ions of rock-forming minerals in the rock are *** lead to an increase in the volume and average diameter of mesopores in it and the forma.ion of micropores,as well,which improve its filtra.ion *** the same time,the amount of kerogen in the composition of the orga.ic matter decreases and the yield of the petroleum hydrocarbon extract increases,in which,according to the SARA analysis,the content of asphaltenes increases and the content of resins,aroma.ic and saturated hydrocarbons *** the composition of aroa.ic hydrocarbons,the proportion of a lkyltri methyl benzenes and dibenzothiophenes increases,phenanthrene homologues appear,and in the composition of saturated hydrocarbons,the amount of iso-structure alkanes decreases rela.ive to the content of linear *** the temperature and pressure of the hydrothermal fluid to 380℃and 20 MPa.increases the degree of kerogen conversion from 12.4%to 23.6%.At the same time,changes occurring in the component composition of petroleum hydrocarbon extracts remains similar to the experiments carried out at 340℃and 17 MPa;the content of naphthalenes decreases,the content of dibenzothiophenes increases and C_(11)-C_(17),C_(19)-C_(22)alkyltrimethylbenzenes *** to iR spectroscopy,with increa.ing temperature and pressure of the hydrothermal fluid the intensity of the absorption bands of the aroma.ic ring,a.ipha.ic fragments,and oxygen-containing groups increases in resins;the structural-group composition of asphaltenes changes little:aroma.icity and the content of conde

关键词： Carbonate deposits Orga.ic matter Hydrothermal fluid Mobile hydrocarbons

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Effect of proton irra.ia.ion on the optical properties of thermal control coa.ing based on polystyrene with silica filler

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Propulsion and Power Research 2024年第1期13卷 1-11页

作者： N.i.Cherkashina V.i.Pavlenko M.M.Mikhailov A.N.La.in S.A.Yuriev R.V.Sidelnikov D.S.Romanyuk Belgorod State Technological University named after V.G.Shoukhov Kostyukov Str.46Belgorod 308012Russia Tomsk State University of Control Systems and Ra.ioelectronics 40Prospect LeninaTomsk 634050Russia

This paper presents the results of studying the surface properties changes of a ther-moregula.ing coa.ing based on polystyrene and silicaﬁller after proton irra.ia.ion with an en-ergy of 50 keV at afluence of 3�1015 cm�*** proton irra.ia.ion,the values of the contact angle of wetting with water increase by 3.5%and 14.9%for polystyrene and the coa.ing,*** free surface energy(energy of the surface layer)of polystyrene and the coat-ings before and after proton irra.ia.ion was calculated using the Owens-Wendt-Rabel-Kaelble *** was a signiﬁcant increase in the pola.ity of the polystyrene surface(gp increased by a factor of 2.2)after proton *** the coa.ing,an increase in gp by a factor of 3.89 was observed after proton *** changes in the coa.ing were presented by iR Fourier spectroscopy.A slight decrease in the absorption intensity of all characteristic bands compared to the unirra.iated sample was *** was found that the irra.ia.ion of the coa.ing with protons led to the forma.ion of macromolecules with hydroxyl,carbonyl,and carboxyl bonds,as well as the forma.ion of dimeric and oligomeric siloxane *** was also found that after irra.ia.ion of a pure polystyrene sample with protons,the value of the solar absorption as increased by only 4.2%;whereas for the coa.ing with silicaﬁller,the value of as increased by 28.6%.

关键词： Thermal control coa.ing Proton irra.ia.ion Hydrophobicity Free surface energy Ra.ia.ion crosslinking

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Dominance of transposable element‑related satDNAs results in great complexity of“satDNA library”and invokes the extension towards“repetitive DNA library”

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Ma.ine Life Science & Technology 2024年第2期6卷 236-251页

作者： Monika Tunjić‑Cvita.ić Da.iel García‑Souto Juan J.Pasantes EvaŠatović‑Vukšić Division of Molecular Biology Ruđer BoškovićInstitute10000 ZagrebCroatia Genomes and Disease Centre for Research in Molecular Medicine and Chronic Diseases(CIMUS)Universidade de Santiago de Compostela15706 Santiago de CompostelaSpain Department of Zoology Genetics and Physical AnthropologyUniversidade de Santiago de Compostela15706 Santiago de CompostelaSpain Centro de investiga.ión Ma.iña Dpto de BioquímicaXenética e InmunoloxíaUniversidade de Vigo36310 VigoSpain

Research on bivalves is fast-growing,including genome-wide analyses and genome *** characteristics qua.ify oysters as a valuable model to explore repetitive DNA sequences and their genome *** we char-acterize the satellitomes of five species in the fa.ily Ostreidae(Crassostrea angulata,***,***,***,Ostrea edulis),revea.ing a substantial number of satellite DNAs(satDNAs)per genome(ranging between 33 and 61)and peculia.ities in the composition of their *** satDNAs were either associated to or derived from transposable elements,displa.ing a scarcity of transposable element-unrelated satDNAs in these *** to the non-conventional satellitome constitution and dominance of Helitron-associated satDNAs,compara.ive satellitomics demanded more in-depth analyses than standardly *** analyses(including ***,the first bivalve species with a defined satellitome)revealed that 13 satDNAs occur in all six oyster genomes,with Cg170/Hindiii satDNA being the most abundant in all of *** the“satDNA library model”highlighted the necessity to adjust this term when studying tandem repeat evolution in orga.isms with such *** repetitive sequences with potential va.ia.ion in the orga.iza.ional form and repeat-type affilia.ion are exa.ined across related species,the introduction of the terms“TE library”and“repetitive DNA library”becomes essential.

关键词： Satellitome Compara.ive satellitomics Helitron Bivalves “Dark matter of the genome”

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Compa.ison of Air Pollution−Morta.ity Associa.ions Using Observed Particulate Matter Concentra.ions and Reanalysis Data.in 33 Spa.ish Cities

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Environment & Health 2024年第3期2卷 161-169页

作者： Dominic Roye Carmen íñiguez Aurelio Tobias Climate Research Founda.ion 28003 MadridSpainSpanish Consortium for Research on Epidemiology and Public Health(CIBERESP)28029 MadridSpain institute of Environmental Assessment and Water Research(iDAEA) Spanish Council for Scientific Research(CSIC)08034 BarcelonaSpain

Air pollution poses a health hazard in all ***,complete data on ambient particulate matter(PM)concentra.ions are not available in all world *** data.is already a valuable source of exposure data.in epidemiological studies exa.ining the rela.ionship between temperature and ***,the performance of reanalysis data.in assessing the short-term health effects of particulate air pollution remains *** assessed the performance of CAMS reanalysis(EAC4)data from the European Centre for Medium-Range Weather Forecasts,compared with daily PM concentra.ions from field monitoring sta.ions,to estimate short-term exposure to PM with an aerodyna.ic diameter less than 10μm(PM_(10))on daily morta.ity in 33 Spa.ish provincial ca.ital cities using a two-stage time series regression *** shape of the PM_(10)distribution va.ied substantially between PM observa.ions and CAMS global reanalysis of atmospheric composition(EAC4)reanalysis data,with correla.ion ranging from 0.21 to *** pooled morta.ity risk for a 10μg/m^(3)increase in PM_(10)showed similar estimates using PM concentra.ions{rela.ive risks(RR)=1.007,95%confidence intervals(95%Ci)=[1.002,1.011]}and EAC4 reanalysis data(RR=1.011,95%Ci=[1.006,1.015]).However,the city-specific PM_(10)beta coefficients estimated using PM concentra.ions and EAC4 reanalysis data showed a low correla.ion(r=0.22).The use of reanalysis data should be approached with caution when assessing the associa.ion between particulate matter air pollution and health outcomes,particularly in cities with small popula.ions.

关键词： Air pollution particulate matter PM_(10) reanalysis EAC4 morta.ity Spain time series regression

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Effect of Ta_(2)O_(5)nanoparticles on bioactivity,composition,structure,in vitro and in vivo beha.ior of PEO coa.ings on Mg-alloy

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Journal of Magnesium and Alloys 2024年第6期12卷 2360-2379页

作者： D.V.Mashtalyar i.M.imshinetskiy V.V.Kashepa K.V.Nadaraia M.A.Piatkova a.i.Pleshkova K.A.Fomenko A.Yu.Ustinov S.L.Sinebryukhov S.V.Gnedenkov institute of Chemistry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal University Vladivostok690950Russia Regional Clinical Dermatovenerological Dispensary Vladivostok690033Russia

The present study investigates the physical and chemical characteristics,beha.ior in vitro and in vivo,and biocompa.ibility of coa.ings containing Ta_(2)O_(5),which are obtained by plasma electrolytic oxida.ion(PEO)on MA8 magnesium *** obtained coa.ings demonstrate in vivo biocompa.ibility and in vitro *** to the base PEO coa.ing,the layers containing Ta_(2)O_(5)fa.ilitate the development of apa.ite in simulated body fluid,suggesting that the inclusion of nanoparticles improves bioactivity of the *** was found that incorpora.ion of Ta_(2)O_(5)nanoparticles increases roughness and porosity of the formed layers by increa.ing particle concentra.ion in electrolytes for the PEO process contributing to sufficient soft tissue ingrowth in *** on in vivo studies,these coa.ings also provide favorable tissue response and minimal inflammatory reaction in compa.ison with the bare magnesium alloy due to protection of living tissues from deleterious corrosion events of magnesium implant such as local alka.iza.ion and intense hydrogen *** results obtained in the present study concluded biocompa.ibility,tissue integra.ion of the PEO coa.ings containing Ta_(2)O_(5)nanoparticles ma.ing them a promising protective layer for biodegradable magnesium implants.

关键词： Plasma electrolytic oxida.ion Bioactive coa.ings Tantalum pentoxide Simulated body fluid(SBF) Apa.ite forma.ion Histology

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Shear wave velocity model using HVSR inversion beneath Bandar Lampung City

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Earthquake Science 2024年第4期37卷 337-351页

作者： Ahmad Zaenudin Alhada Farduwin Gede i Boy Darmawan Karyanto Department of Geophysical Engineering University of LampungBandar Lampung 35145Indonesia Department of Geophysical Engineering Sumatera Institute of TechnologySouth Lampung 35365Indonesia

The horizontal-to-vertical spectral ra.io(HVSR)method has been used to characterize site-effect parameters that are indispensable in seismic hazard and risk-reduction studies in urban areas and ra.id land-use *** method is widely used because it is the cheapest and simplest geophysical method for the acquisition and processing *** subsequent developments,the HVSR method has been widely used to determine elastic rock parameters,particularly shear wave velocity(v_(S)),through the HVSR curve inversion ***,the v_(S)structural model can be used to delineate the presence of complex geological structures,particularly faults and sedimentary *** Lampung is a city in Lampung Province with many fault structures and groundwater ba.ins to the *** are 83 HVSR measurement points around Bandar Lampung for delinea.ing the presence of fault structures and groundwater *** produced the HVSR curve from the measurement results and then performed an inversion process using the particle swarm optimiza.ion algorithm to obtain v_(S)for the depth ***,from this profile,we produced a two-dimensional(2D)lateral and vertical *** mean v_(S)value was calculated from all the measurement points,and we found stiff soil layers reaching depths of approximately 5 m,with a value of v_(S)ith a velocity exceeding 1250 m/s was visible at a depth of 100 *** on the 2D model,the v_(S)structure shows that the city of Bandar Lampung is divided into two zones,with a NW-SE *** north-middle-eastern part of the city consists of harder *** harder rock is characterized by extremely high v_(S)values,starting from a depth of 50 *** contrast,the south-middle-west exhibits a low-moderate v_(S)anomaly associated with groundwater ba.ins SW of the *** the 2D v_(S)structural model,fault structures can be found along the city,characterized by a contrast of v_(S)values from low to medium and from me

关键词： shear wave velocity HVSR fault structures groundwater ba.in Bandar Lampung City

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Antibacterial HA-coa.ings on bioresorbable Mg alloy

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Journal of Magnesium and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.Mashtalyar M.A.Piatkova a.i.Pleshkova.i.M.imshinetskiy M.S.Gera.imenko E.A.Belov V.V.Kumeiko D.N.Kozyrev K.A.Fomenko V.V.Mostovaya B.R.Torpanov A.R.Biktimirov i.S.Osmushko S.L.Sinebryukhov S.V.Gnedenkov institute of Chemistry FEB RAS 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal University 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirmunsky Na.ional Scientific Center of Ma.ine Biology FEB RAS 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Dermatovenerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia NMiC“Treatment and Reha.ilita.ion Center” 3 Ivankovskoe highwayMoscow 125367Russia

in this study,a calcium-phosphate coa.ing was formed on a Mg-Mn-Ce alloy by the plasma electrolytic oxida.ion(PEO).The antibiotic vancomycin,widely used in the treatment of infections caused by Staphylococcus aureus(***),was impregnated into the *** with vancomycin showed high bactericidal activity against *** mecha.ical and electrochemical properties of the formed coa.ings were studied,as well as in vitro cytotoxicity tests and in vivo tests on mature male rats were *** to SEM,EDS,XRD and XPS data,coa.ings had a developed morphology and contained hydroxyapa.ite,which indicates high *** analysis of roughness of coa.ings without and with vancomycin did not reveal any differences,confirming the high roughness of the *** electrochemical tests,an increase in corrosion resistance by more than two times after the applica.ion of PEO coa.ings was *** to the results of an in vivo study,after 28 days of the implanta.ion of samples with calcium phosphate PEO coa.ing and vancomycin,no signs of inflamma.ion were observed,while an inflammatory reaction developed in the area of implanta.ion of bare alloy,followed by *** release tests from the coa.ings show a sharp decrease in the concentra.ion of the released antibiotic on day 7 and then a gradual decrease until day *** the experiment,no significant devia.ions in the condition and beha.ior of the a.imals were observed;clinical tests did not reveal a systemic toxic reaction.

关键词： Bioactive coa.ings Biocompa.ibility Mg alloy Plasma electrolytic oxida.ion Hydroxyapa.ite Vancomycin

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Microstructure， electrochemical， wear and corrosive wear performance of laser-based powder bed fusion(lpbf) and wrought biomedical Ti-6Al-4V alloys

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Transactions of Nonferrous Metals Society of China 2024年

作者： A.G.Lekatou B.V.Efremenko V.Haoui V.G.Efremenko S.Emmanouilidou V.i.Zurnadzhy i.Petryshynets Yu.G.Chabak i.i.Sili Laboratory of Applied Metallurgy， Department of Materials Science and Engineering， School of Engineering， University of ioannina institute of Materials Science and Computing， University Research Center of ioannina (URCi) Pryazovskyi State Technical University， Department of Physics institute of Materials Research of Slovak Academy of Sciences

Wrought and laser powder bed fusion （LPBF） Ti-6Al-4V specimens were compara.ively evaluated， with the objective to determine LPBF Ti-6-4’s suita.ility for biomedical applica.ions. Testing included nanoindenta.ion， cyclic pola.iza.ion in simulated body fluid （SBF， 37 ℃ ）， and dry and SBF “Ball-on-Plate” sliding. Wrought Ti-6-4 exhibited a lamellar （α+β） microstructure， whereas LPBF displayed a fine-grained α'-martensite microstructure. LPBF Ti-6-4 demonstrated ～3% higher indenta.ion modulus and ～32% higher hardness， while wrought Ti-6-4 showed ～8% higher plasticity. Both alloys exhibited low corrosion rates (10–5mA/cm2order) and true passivity (10–4mA/cm2order). No loca.ized corrosion was observed in either alloy， except for occa.ional metastable pitting in the LPBF alloy. However， LPBF Ti-6-4 presented higher corrosion rate and passive current， ascribed to its martensitic structure. During dry sliding， LPBF Ti-6-4 exhibited ～14% lower volume loss compared to wrought Ti-6-4. Sliding in SBF increased volume losses for both alloys， with wear resistances nearly equa.ized， as the advantage of LPBF Ti-6-4 decreased due to more intensive wear-accelerated corrosion induced by the stressed martensite. Overall， the results demonstrate the suita.ility of LPBF Ti-6Al-4V for biomedical uses.

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Sequential alka.ine-orga.ic a.id leaching process to enhance the recovery of rare earth elements from indonesian coal fly ash

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Journal of Rare Earths 2024年第7期42卷 1366-1374,I0006页

作者： Widya Rosita.indra Perdana.i Made Bendiyasa Ferian Anggara Himawan Tri Bayu Murti Petrus Agus Prasetya.isyatun Rodliyah Department of Nuclear Engineering and Engineering Physics Faculty of EngineeringUniversitas Gadjah MadaJl Grafika No.2Yogyakarta55281Indonesia Department of Chemical Engineering Faculty of EngineeringUniversitas Gadjah MadaJl Grafika No.2Yogyakarta55281Indonesia Department of Geological Engineering Faculty of EngineeringUniversitas Gadjah MadaJl Grafika No.2Yogyakarta55281Indonesia Unconventional Geo-resources Research Group Faculty of EngineeringUniversitas Gadjah MadaJl Grafika No.2Yogyakarta55281Indonesia Center for Testing of Mineral and Coal Tekmira-Directorate General of Mineral and Coal-Ministry of Energy and Mineral Resources Jl.Jend.Sudirman No.623Wr.MuncangKec.Bandung KulonKota BandungJawa Barat40211Indonesia

in this decade,coal fly ash(CFa.is considered a potential secondary source of rare earth elements(REEs).However,most REEs in coal fly ash are encapsulated in aluminosilicate glass,ma.ing it challenging to recover them through a.id *** this study,a sequential alka.ine-orga.ic a.id leaching was developed for the recovery of REEs from *** effect of alka.ine leaching using NaOH solution on the destructive a.ility of aluminosilicate glass,as well as the mineralogy and morphology changes of the resulting coal fly ash,was first ***,the effectiveness of alka.ine leaching on the recovery a.ility of REEs through orga.ic a.id leaching was *** results show that the ma.imum leaching efficiency for Si and Al,which was obtained at the optimum alka.ine leaching conditions,namely NaOH concentra.ion of 10 mol/L,reaction temperature of 65℃,liquid/solid(L/S)ra.io of 10 mL/g,and reaction time of 90 min,is 28%and 32%,*** digestion reaction with NaOH lixiviants also causes coal fly ash to become more porous,ma.ing it advantageous in the orga.ic a.id-leaching process at the REEs recovery *** utiliza.ion of the desilicated residue produced from the digestion process in a.id leaching effectively increases the overall REEs recovery from 32.2%to 77.6%.

关键词： Rare earth elements Alka.ine Orga.ic a.id Coal fly ash

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Compara.ive analysis of jet and underlying event properties across va.ious models as a function of charged particle multiplicity at 7 TeV

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Chinese Physics C 2024年第9期48卷 118-125页

作者： Maryam Waqar Haifa.i.Alrebdi Muhammad Waqas K.S.Al-mugren Muhammad Ajaz Department of Physics Abdul Wali Khan University MardanMardan 23200Pakistan Department of Physics College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

in this study,a comprehensive analysis of jets and underlying events as a function of charged particle multiplicity in proton-proton(pp)collisions at a center-of-mass energy of √s=7 TeV is *** Monte Carlo(MC)event generators,including Pythia8.308,EPOS 1.99,EPOSLHC,EPOS4_(Hydro),and EPOS4_(noHydro),are employed to predict particle *** predictions from these models are compared with experimental data from the CMS *** charged particles are categorized into those associated with underlying events and those linked to jets,and the analysis is restricted to charged particles with|η|0.25 GeV/*** compa.ing the MC predictions with CMS data,we find that EPOS4_(Hydro),EPOSLHC,and Pythia8 consistently reproduce the experimental results for all charged particles,underlying events,intrajets,and lea.ing charged *** charged jet rates with p_T^(***)>5 GeV/c,EPOS4_(Hydro)and Pythia8 perform exceptionally *** the case of charged jet rates with p_T^(***)→30 GeV/c,EPOSLHC reproduces sa.isfactorily good results,whereas EPOS4 Hydro exhibits good agreement with the data at higher charged particle multiplicities compared to the other *** can be attributed to the conversion of energy into flow when"Hydro=on"lea.ing to an increase in *** EPOSLHC model describes the data better owing to the new collective flow effects,correlated flow treatment,and parameteriza.ion compared to EPOS ***,the exa.ina.ion of the jet p_T spectrum and norma.ized charged p_T density reveals that EPOS4_(Hydro),EPOS4_(noHydro),and EPOSLHC exhibit good agreement with the experimental results,whereas Pythia8 and EPOS 1.99 do not perform as well owing to the lack of correlated flow treatment.

关键词： Monte Carlo models underlying event jets charged particle multiplicity

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